Plow bottom



April 25, 1944. KE 2,347,167

PLOW BOTTOM Filed 061. '6. 1941 2 INVENTOR Herbert N. Baker 7 s\\\\\\\\ W TIZRNEYS I Patented Apr. 25, 1944 PLOW BOTTOM I Herbert N. Baker, Syracuse, N. Y., assignor to Syracuse Chilled Plow Company, Inc., Syracuse, N. Y., a corporation of New York Application October 6, 1941, Serial No. 413,755 17 Claimsf (01; 97-125) This invention relates enerally to agricultural implements and more particularly to plows and other earth working tools.

The object and general nature of the present invention is the provision of certain new and useful improvements in plows of the type having a' detachable andreplaceable point, and it is also an important feature of this invention to provide a novel point particularly constructed to facili-- tate attaching the same and to improve the operating efiiciency of the point.

More specifically, it is a feature of this invention to provide a plow having a separate wing, the landside 'edge' of which is spaced from the landside-face'of the frog to which the wing and moldboard are attached, with a detachable and replaceable point and clamping means carried by the frog and having a wedging action against the pointand reacting against the frog for,'first, drawing the replaceable'point into proper position and holding the same in that positiomand second, to establish a lateral clamping action between the point and the landside may be held firmly and rigidly in position. In this connection, it is a further feature of this invention to provide improved clamping means of the wedge'type which not only draws the point j face of' the frog, whereby the detachable point into proper position, generally longitudinally of the frog, but also forces thepoint generally laterally against the adjacent edge of the wing or blade.

Still further, it is a feature of this invention to provide a plow of the separate wing and de'- tachable point type; in which the adjacent and substantiallycontactin edges of the wing and point are beveled, whereby the adjacent portion of the point overlies the beveled edge of the wing or blade. In this connection it is also a feature of this invention to provide a lateral extension on the point which isformed to overlap the junction between the wing andpoint so as to prevent rootsan-d the like froni'entering the space between the pointand .wing orblade.

These and other objects and. advantages of the present invention will be apparent tothose skilled-in the art-after a consideration of the following detailed description, taken in conjunction with the accompanying drawing. In the drawing:

Figure 1 is a plan View of a plow bottom in which the principles of the present invention have been incorporated;

- Figure 2 is a fragmentary enlarged bottom view, showing in particular the detachable point and the clamping wedging meanssecuring the point 'to the plow bottom frog in overlapping relation with respect to the adjacent portion of the wing or blade} Figure 3 is an enlarged section taken along the line 33 of Figure 2 I Figure 4 is an enlarged fragmentary perspective view of the wedge end of the drawbolt shown generally in Figures 2 and 3;

Figure 5 is a bottomyiew of the detachable point; and

Figure 6 is a section taken through the point substantially on the line 6-5 of Figure 5.

Referring now to the drawing, more particu larly to Figures 1 and 2','the plow bottom I have chosen to illustrate the present invention is indicated in Figure 1 in its entirety by the reference numeral l and comprises a construction that is more or less conventional -including a frog 2 which serves as the'supporting means for the otherparts, a inol'dboard 3 and a landside 4, connected by a brace 5. The plow bottom I also includes a wing or blade 6 which preferably'is connected to the frog 2 by a pair of plow bolts 1 so as to form a continuation of the moldboard surface. The wing or blade 6 includes-a landside edge 9 which iss'paced laterally from the landside face of the moldboard and landside, indicated by the reference numeral l I. The landside portion of the frog 2 is indicated in Figure 2 by the reference numeral l2, and the edge of this portion of the frog lies in or adjacent the plane of the landside face ll mentioned above;

According to the principles of the present invention I provide a separate detachable and replaceable plow point or share indicated inits entirety by the reference numeral lb. The point 15 is of particular construction and is designed to be detachably' connected to the frog 2 so as to lie in the spacebetween the landside'edge of the wing 6,-the forward edge of the moldboard 3'at the landside portion thereof, 'iri'di'catedv'by the reference numeral I6, and the landside plane of the plow bottom I. Preferably; the detachable point or share I5 is of cast construction, emf bodyinga wedge shaped point proper, indicated by the reference numeral l'L-this' portion being formed at the forward'end of a thickened blade section It. The landside edge of the point 15 is bolt serves to hold the point down against the upper face of said frog, and said cooperating surfaces being disposed at an angle to the plane of the landside face of said frog, whereby tightening said draw bolt serves to force said part of the point laterally against the landside face of the frog. V 1

2. A plow body comprising a frog having a landside edge, a wing secured to said frog and having a beveled edge spaced from the landside edge of the frog, a separate point formed at one side with an overhanging portion engaging said landside edge of the frog and at the other side with a beveled edge overlying the beveled edge of said wing, and means having a laterally di-' rected component of force for clamping the overhanging portion of the point against the landside edge of the frog and the beveled edge of the point against the beveled edge of the wing.

3. A plow body comprising a frog having 'a landside edge, a wing secured to said frog and having a beveled edgespaced from the landside edge of the frog, a separate point formed at one side with a landside portion adapted to engage said landside edge of the frog and at the other side with a beveled edge adapted to overlie the beveled edge of said wing, said point being free for movement relative to said frog when the landside portion of the point engages the landside portion of the frog, and means acting between the frog and point for forcing the latter generally laterally so as to hold said beveled edges in substantial contact when the point is moved longitudinally of the frog.

4. A plow body comprising a frog having a landside edge, a wing attached to the frog and having an edge parallel to but spaced from said landside edge of the frog when the wing is attached to the frog, a replaceable point detachably secured to the frog in a position against the edge of said wing that is parallel to said landside edge, thereby providing for movement of said point along said parallel edges, said point having a portion disposed laterally beyond the plane of said edged the wing so as to prevent roots and the like from entering the space between the point and th wing, and means for shifting said point along said parallel edges for clamping said point to said frog with said lateral portion in front of said wing edge.

5. A plow point having a beveled wing-engaging edge at one side adjacent the rear end and a portion at the other side adapted to engage the landside face of a frog and disposed generally parallel with respect to said wing-engaging edge, said point also having a laterally directed extension at said one side forward of said beveled wing-engaging edge disposed laterally beyond said wing engaging edge so as to overlie the junction between the wing andpoint along said beveled edge.

6. A plow point having a beveled wing-engaging edge at one side adjacent the rear end and a portion at the other side adapted to engage the landside face of a frog, said portions being substantially parallel, and a drawbolt receiving lug on the point and having a wedging surface disposed at an angle to said frog-engaging portion and said wing-engaging edge.

7. A plow point comprising a member having at one side a depending landside flange extending at an oblique angle toward the opposite side and at the opposite side a wing-engaging edge and an extension disposed in front of and extending laterally beyond said edge.

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8."The combination with a plow body of a detachable point having a landside flange and an abutmenton its lower face, a frog having a projecting toe portion fitting between'said abutment and saidjflange, said point having a part extending beneath said toe portion, and means connected between the frog and said abutment on the point for drawing the latter onto the plow body both generally longitudinally of the toe portion of the frog and generally laterally against the side of the toe portion for securing the point to the plow body.

9. The combination with a plow body of a detachable point having a landside flange and an abutment on the inner face of said landside flange, a frog having a projecting toe portion fitting between said abutment and said flange, and means on the frog having a lateral wedging action against the point for drawing the latter onto the toe portion of the frog and clamping the point laterally against the side of the toe portion of the frog.

10'. In a plow body, a frog having a lug-receiving opening and an abument face, longitudinally movable securing means carried by said frog and including a wedge lug having a portion slidable along said abutment face, a point detachable relative to said frog and having a part engageable with the landside face of the frog, and a wedge lug on said point adapted to be engaged with the wedge lug on said securing means, at least one of said wedge lugs extending into said frog opening to receive the other wedge lug, and said wedge lugs having complementary engaging surfaces formed so that the lug on said securing means reacts against said abutment face for clamping said point on said frog against the landside face of the latter.

11. In a plow body, a frog, securing means movably carried thereby and having at one end a lug formed with an undercut clamping surface disposed at an angle to the line of movement of said securing means, and a point adapted to be secured to said frog with a part against the landside face of the latter and carrying a lug having an angled undercut surface adapted to receive the undercut surface of the lug on said securing means, whereby tightening the latter holds said point on the frog and also clamps said point against the landside face of the frog.

12. The combination with a plow body of a detachable point having a landside flange, a frog having a projecting toe portion fitting against said flange, said point having a part extending beneath said toe portion, and means connected between the frog and said point for drawing the latter onto the plow body both generally longitudinally of the toe portion of the frog and generally laterally against the side of the toe portion for securing the point to the plow body.

13. The combination with a plow body of a detachable point having a landside flange and an abutment on its lower face, a frog having a projecting toe portion fitting between said abutment and said flange, and means connected between the frog and said abutment on the point for drawing the latter onto the plow body both generally longitudinally of the toe portion of the frog and generally laterally against the side of the toe portion for securing the point to the plow body.

14. A plow body comprising a frog having a landside edge, a wing secured to said frog and having a beveled edge spaced from the landside edge of the frog, a replaceable point formed a a sid wit land isie portion engagin said. lei ds e ed e o t e in? and a the ep-p site side with a beveled edge overlying the bevled e e of a d ne nd means a t n b tween said frog and said point 01 drawing said Oth s de the eof d n i a evel d win edge and drawin Said landside portion generally laterally against said landside edge of the frog.

15. A plow point having generally parallel sides, a flan e at one side with means for engaging the landside portionpi a frog, said flange having a projection overlapping saidlandside portion and engaging the under side of said landside portion, when said plow point is mounted on sa dima hq d s d o he in down against said frog, a beveled wing=engagns er ien a h o i e sid s i point, an a fe tener r rig'P r 1. th y e er s de o aid mint a d a iabent sa d be eled po ti n for receiving means for holding said beveled portion down against said frog. s

1.6 A plow point having a w ingeengaging edge at one id djacent t rea end and a flanged pq ti t t opp it side enga i the a dside face of a frog, when the plow point is mounted on a rog s id flan ed port n h ving a p r engaging the underside of the landside part of said frog, and a drawbolt receiving lug on the point and having a wedging surface disposed at an angle to said frog-engaging portion and said wing-engaging edge.

17. A plow point adapted to be attached to a frog, comprising a wedge shaped member having a thickened soil-entering blade section, a rearward section thinner than said blade section and receiving said frog with an edge of the frog disposed adjacent the thickened rear edge of said blade section, a flange extending along one side of said member from said blade section toward the rear edge of said thinner seen n ng n o e si e of said f o and lu means on said flange engaging the underside of aid rog.

HERBERT N. BAKER. 

